Development of a MASH TL-3 median barrier gate.

Details

• Alternative Title:
  Project title: Roadside safety device crash testing program
• Creators:
  Bligh, Roger P. ; Arrington, Dusty R. ; Sheikh, Nauman M. ; Silvestri, Chiara ; Ivev, Don L.
• Corporate Creators:
  Texas Transportation Institute
• Corporate Contributors:
  Texas. Dept. of Transportation. Research and Technology Implementation Office ; United States. Federal Highway Administration
• Subject/TRT Terms:
  • Medians
  • Median barriers
  • Median strips--Design and construction
• Publication/ Report Number:
  FHWA/TX-11/9-1002-2
• Resource Type:
  Tech Report
• Geographical Coverage:
  Texas
• Edition:
  Technical/test report; Sept. 2008-Aug. 2010.
• Corporate Publisher:
  Texas Transportation Institute
• Abstract:
  Median barriers are commonly used to separate opposing lanes of traffic on divided highways and to ; separate managed lanes from general purpose lanes. Concrete median barriers (CMBs) are often preferred ; on urban freeways with narrow medians due to their minimal deflection and low maintenance. However, ; long, continuous runs of CMBs limit access of emergency and maintenance vehicles to the other side of a ; roadway or a managed lane. Implementation of crashworthy median barrier gates at these locations can ; maintain the desired level of median protection for motorists while offering improved cross-median access ; for emergency and/or maintenance vehicles. ; A new median barrier gate was developed and crash tested under this project. The gate spans a 30-ft ; opening in a concrete median barrier and consists of two vertically stacked 12-inch × 12-inch × ¼-inch steel ; tubes connected to steel end brackets with 2¼-inch diameter steel pins. ; The gate is economical to fabricate and install. It can be manually operated by a single person and is ; designed to accommodate reversible traffic flow on both sides of the median and be operable in both ; directions on each end. The median barrier gate satisfies MASH Test Level 3 (TL-3) impact performance ; criteria and is considered suitable for implementation on Texas highways where cross-median access is ; desired.
  More +
• Format:
  PDF
• Funding:
  Project 9-1002
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/20702/dot_20702_DS1.pdf
• File Type:
  [PDF - 24.09 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:55990c78c4793637e85f5f3a11827b8ceecc7aacef67c4161559c424b42a49c4763a740853f514394bbee2bf1fb59b2bec0c694ae30e0096b44a8feb9345e901